Speckle omni-directional pressing generation device of digital image correlation method

Abstract

The utility model discloses a speckle omni-directional pressing generation device based on a digital image correlation method. Relates to the technical field of test data measurement, and comprises an inking assembly comprising an inking plate, an L-shaped plate, a support and a roller, the inking plate is a U-shaped plate, push-out grooves are formed in two ends of the inner side of the inking plate, a hand support is arranged at the bottom of the inking plate, the L-shaped plate is arranged at one end, far away from the hand support, of the inking plate, the support is hinged to the L-shaped plate, and the roller is hinged to one end, far away from the L-shaped plate, of the support; the push-out assembly comprises a push-out body, a push-out plate and a rotating groove, the push-out body is arranged in the inking plate, protrusions are arranged on the two sides of the push-out body, the push-out plate is arranged at the end, away from the roller, of the push-out body, the rotating groove is formed in the end, away from the push-out plate, of the push-out body, and a clamping tenon is arranged on the rotating groove; one end of the speckle printing plate is provided with a protruding speckle point, and the other end of the speckle printing plate is provided with a rotating tenon. According to the utility model, speckle printing can be efficiently completed, and accurate generation of multi-scale speckles can be easily realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to test data measurement technical field more specifically relates to a digital image correlation method's speckle all -round press generation device. BACKGROUND

[0002] The application of digital image correlation (DIC) technology in the field of mechanics is expanding, and its integration in mechanics experiment teaching has significantly improved teaching quality and effectiveness, and injected new vitality into the progress of mechanics research. DIC technology accurately captures the small deformation of the object surface by comparing the gray scale changes of the material surface speckle before and after deformation, thereby accurately determining the key mechanics indicators such as strain and displacement of the material, and providing solid data support for evaluating the mechanics performance of the material.

[0003] However, the current speckle production mainly relies on manual spraying and point selection, which is easily affected by the experience and technique of the operator, and the technical parameters are difficult to reproduce, resulting in uneven quality of speckle. The preparation of speckle on different samples cannot achieve consistency, which introduces measurement error and affects the accuracy of mechanics parameter measurement.

[0004] Therefore, how to provide a digital image correlation method's speckle all -round press generation device with high efficiency, uniformity and repeatability is a problem that technicians in the field need to solve. UTILITY MODEL CONTENT

[0005] Therefore, the utility model provides a digital image correlation method's speckle all -round press generation device, which is efficient, uniform and repeatable.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A digital image correlation method's speckle all -round press generation device, comprising:

[0008] The ink application assembly comprises an ink application plate, an L-shaped plate, a bracket and a roller, the ink application plate is a U-shaped plate, both ends of the inner side of the ink application plate are provided with push-out grooves, the bottom of the ink application plate is provided with a hand rest, the L-shaped plate is arranged at one end of the ink application plate away from the hand rest, the L-shaped plate is located below the push-out grooves, the bracket is hinged with the L-shaped plate, a connecting spring is arranged between the bracket and the L-shaped plate, and the roller is hinged with one end of the bracket away from the L-shaped plate;

[0009] The push-out assembly comprises a push-out body, a push-out plate and a rotating groove, the push-out body is arranged in the ink feeding plate, protrusions are arranged on both sides of the push-out body, the protrusions are matched with the push-out groove, the push-out plate is arranged at one end of the push-out body away from the roller, and the rotating groove is arranged at the other end of the push-out body away from the push-out plate, and a tenon is arranged on the rotating groove.

[0010] The speckle printing plate is provided with protruding speckle points at one end, a plurality of speckle printing plates are arranged, and a rotating tenon is arranged at the other end of the speckle printing plate.

[0011] Further, the two ends of the connecting spring are respectively hinged to the support and the L-shaped plate.

[0012] Further, the rotating groove and the rotating tenon are fixed through the tenon, and the speckle printing plate rotates 360 degrees on the push-out body through the rotating tenon.

[0013] Further, the plurality of protruding speckle points uniformly cover one side of the speckle printing plate.

[0014] Further, the length of the support is longer than the length of the L-shaped plate.

[0015] Compared with the prior art, the technical scheme has the beneficial effects that:

[0016] The speckle printing plate is fixedly connected with the rotating groove of the push-out body through the rotating tenon, and is finally stably locked in place by the tenon, which allows the speckle printing plate to rotate 360 degrees without dead angle through the rotating tenon, so as to adapt to various complex shaped surfaces for speckle making; and the reliable fixing mechanism of the tenon ensures the stability and accuracy of the speckle printing plate during operation, so as to achieve the goal of accurately making speckles on different shaped surfaces; the flexible connection of the components of the ink feeding assembly and the push-out assembly can smoothly slide along the predetermined track under the cooperation of the roller, the support and the connecting spring under the driving of the push force, which ensures that the speckle printing plate can uniformly and efficiently dip the ink, greatly improving the convenience and efficiency of operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creating any creative labor.

[0018] Figure 1 A structure schematic view of the speckle all-around pressing generation device of the digital image correlation method is provided in the utility model.

[0019] Figure 2 A structure schematic view of the ink applying assembly is provided in the utility model.

[0020] Figure 3 A structure schematic view of the pushing-out assembly is provided in the utility model.

[0021] Figure 4 A structure schematic view of the speckle printing plate is provided in the utility model.

[0022] Among them: 1 is ink applying assembly; 11 is ink applying plate; 12 is L-shaped plate; 13 is support; 14 is roller; 15 is pushing-out groove; 16 is hand support; 17 is connecting spring; 2 is pushing-out assembly; 21 is pushing-out body; 21 is pushing-out plate; 23 is rotating groove; 24 is protrusion; 25 is tenon; 3 is speckle printing plate; 31 is protrusion speckle point; 32 is rotating tenon. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Referring to Figures 1-4 The utility model embodiment discloses a kind of speckle all-around pressing generation device of digital image correlation method, comprising:

[0025] Ink applying assembly 1, including ink applying plate 11, L-shaped plate 12, support 13 and roller 14, ink applying plate 11 is U-shaped plate, both ends of the inside of ink applying plate 11 are equipped with pushing-out groove 15, the bottom of ink applying plate 11 is provided with hand support 16, L-shaped plate 12 is set at the end of ink applying plate 11 away from hand support 16, L-shaped plate 12 is below pushing-out groove 15, support 13 is hinged with L-shaped plate 12, connecting spring 17 is arranged between support 13 and L-shaped plate 12, roller 14 is hinged with the end of support 13 away from L-shaped plate 12;Preferably, roller 14 uses ink absorbing wheel, can be repeatedly used, and ink absorbing wheel will not cause ink excess to make the speckle made deformation;

[0026] The push-out assembly 2 includes a push-out body 21, a push-out plate 22 and a rotating groove 23. The push-out body 21 is arranged in the inking plate 11. The two sides of the push-out body 21 are provided with protrusions 24 which are matched with the push-out groove 15. The push-out plate 22 is arranged at the end of the push-out body 21 away from the roller 14. The rotating groove 23 is arranged at the end of the push-out body 21 away from the push-out plate 22. The rotating groove 23 is provided with a tenon 25. The push-out body 21 is adjusted to a suitable position on the push-out groove 15. When the push-out plate 22 pushes out the push-out body 21, the roller 14 is driven by the pushing force to smoothly slide along the predetermined track in cooperation with the support 13 and the connecting spring 17. This process ensures that the speckle plate 3 can uniformly and efficiently dip the ink, greatly improving the convenience and efficiency of the operation.

[0027] The speckle plate 3 is provided with protrusions 24 and speckle points 31 at one end. A plurality of speckle plates 3 are arranged. The other end of the speckle plate 3 is provided with a rotating tenon 32. The speckle plate 3 is hinged to the push-out body 21 through the rotating tenon 32. The speckle plate 3 can be rotated by 360 degrees without dead angle through the rotating tenon 32 to adapt to various complex shaped surfaces for speckle making. The reliable fixing mechanism of the tenon 25 ensures the stability and accuracy of the speckle plate 3 during operation, thereby achieving the goal of accurately making speckles on different shaped surfaces.

[0028] In this embodiment, the two ends of the connecting spring 17 are hinged to the support 13 and the L-shaped plate 12 respectively. One end of the connecting spring 17 is hinged to the L-shaped plate 12 through a rotating shaft. The other end of the connecting spring 17 is also hinged to the support 13 through a rotating shaft. The roller 14 is also hinged to the support 13 through a rotating shaft to form a stable and flexible whole.

[0029] In this embodiment, the rotating groove 23 and the rotating tenon 32 are fixed by the tenon 25. The speckle plate 3 is rotated by 360 degrees on the push-out body 21 through the rotating tenon 32 to adapt to various complex shaped surfaces for speckle making.

[0030] In this embodiment, the plurality of protrusions 24 and speckle points 31 uniformly cover one side of the speckle plate 3.

[0031] In this embodiment, the length of the support 13 is longer than the length of the L-shaped plate 12.

[0032] In addition, in this embodiment, a speckle printing plate 3 made of resin is used. This design effectively avoids the problem of excessive deformation of the protrusions 24 and the scattered spots 31 that may occur during the speckle spraying process. The size and shape of the protrusions 24 and the scattered spots 31 are defined by precise distance measurement, and the distribution pattern of the speckle is randomly generated by a computer algorithm, thereby ensuring an unbiased distribution of the speckle positions. The device also has the function of adjusting the shape and size of the protrusions 24 and the scattered spots 31 to meet the diverse needs of speckle spraying of different scales. The speckle printing plate 3 can be integrated into a single piece with the help of 3D printing technology, further improving the convenience and accuracy of production.

[0033] The inking plate 11, the hand rest 16, the ejector 21 and the speckle printing plate 3 are all made of resin or plastic to prevent large deformation. At the same time, these components can be manufactured through an integrated molding process, which not only ensures the integrity and stability of the structure, but also greatly simplifies the installation process, making the installation of the entire device simple and quick; it can realize the replaceability of each component, bringing greater flexibility and convenience.

[0034] The specific steps are as follows:

[0035] Step 1: One end of the connecting spring 17 is hinged to the L-shaped plate 12 via a rotating shaft, while the other end of the connecting spring 17 is also firmly hinged to the bracket 13 via the rotating shaft. The roller 14 is also firmly and flexibly hinged to the bracket 13 via the rotating shaft, forming an integrated and efficient coordinated inking assembly 1.

[0036] Step 2: Push the ejection plate 22 to adjust the ejection body 21 to a suitable position on the ejection groove 15 on the inking plate 11;

[0037] Step 3: The speckle printing plate 3 is inserted into the rotating groove 23 of the ejector 21 through the rotating tenon 32 and finally fixed by the latch 25;

[0038] Step 4: After the device is assembled, just push the ejector plate 22 gently, and the roller 14 will slide down smoothly under the help of the thrust and the connection spring 17, so that the speckle printing plate 3 can be evenly inked;

[0039] Step 5: The speckle pattern printing plate 3 can be rotated according to the plane shape of the speckle pattern to be printed, and is firmly locked by the tenon 25 on the ejection component 2. The ejection device is pushed again to efficiently complete the printing of the speckle pattern.

[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0041] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A speckle omnidirectional pressing generating device using a digital image correlation method, characterized in that: include: The inking assembly includes an inking plate, an L-shaped plate, a bracket and a roller, wherein the inking plate is a U-shaped plate, and both ends of the inner side of the inking plate are provided with a push-out groove, a hand rest is provided at the bottom of the inking plate, the L-shaped plate is provided at an end of the inking plate away from the hand rest, the L-shaped plate is located below the push-out groove, the bracket is hinged to the L-shaped plate, a connecting spring is provided between the bracket and the L-shaped plate, and the roller is hinged to the end of the bracket away from the L-shaped plate; An ejection assembly includes an ejection body, an ejection plate, and a rotation groove. The ejection body is disposed in the inking plate. Both sides of the ejection body are provided with protrusions, which are adapted to the ejection groove. The ejection plate is disposed at an end of the ejection body away from the roller. The rotation groove is disposed at an end of the ejection body away from the ejection plate. A tenon is disposed on the rotation groove. A speckle printing plate, wherein one end of the speckle printing plate is provided with raised scattered spots, a plurality of the speckle printing plates are provided, and the other end of the speckle printing plate is provided with a rotating tenon, and the speckle printing plate is hinged to the ejection body through the rotating tenon.

2. The speckle omnidirectional pressing generating device using digital image correlation method according to claim 1, characterized in that: The two ends of the connecting spring are hinged to the bracket and the L-shaped plate respectively.

3. The speckle omnidirectional pressing generating device using digital image correlation method according to claim 1, characterized in that: The rotating groove and the rotating tenon are fixed by the tenon, and the speckle printing plate is rotated 360 degrees on the ejection body by the rotating tenon.

4. The speckle omnidirectional pressing generating device using a digital image correlation method according to claim 1, characterized in that: A plurality of raised speckle spots uniformly cover one side of the speckle printing plate.

5. The speckle omnidirectional pressing generating device using digital image correlation method according to claim 1, characterized in that: The length of the bracket is longer than the length of the L-shaped plate.

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